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"I was 48, 49 when I joined (Celtic). I had worked at Premier League clubs, with Sir Alex Ferguson and all these kind of people, had done my time, was ready to go again, got the opportunity and thought I could deal with it.

"Three weeks in, I thought 'oh dear'.

"I've never felt so alone in my life. It was literally me and my wife taking on the world. It was so stressful. I've never felt like that (at any other club)...

"Me and my wife used to sit in the city, hold hands and hope it would get better. The whole of Glasgow, you belong to them."